Hourly Wages Narrative
A random sample of 15 hourly wages for waitresses (including tips) was drawn from a normal population. The sample mean and sample standard deviation were computed as = $14.9 and s = $6.75.
-Refer to Hourly Wages Narrative. Can we infer at the 5% significance level that the population mean is greater than 12, assuming that you know the population standard deviation is equal to 6.75? Give reasons for your answer.

Question

Hourly Wages Narrative
A random sample of 15 hourly wages for waitresses (including tips) was drawn from a normal population. The sample mean and sample standard deviation were computed as  = $14.9 and s = $6.75.
-Refer to Hourly Wages Narrative. Can we infer at the 5% significance level that the population mean is greater than 12, assuming that you know the population standard deviation is equal to 6.75? Give reasons for your answer.

Quizplus · Accepted Answer

The Answer of Hourly Wages Narrative
A random sample of 15 hourly wages for waitresses (including tips) was drawn from a normal population. The sample mean and sample standard deviation were computed as  = $14.9 and s = $6.75.
-Refer to Hourly Wages Narrative. Can we infer at the 5% significance level that the population mean is greater than 12, assuming that you know the population standard deviation is equal to 6.75? Give reasons for your answer.

Hourly Wages Narrative A Random Sample of 15 Hourly Wages for Waitresses (Including